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American Focus > Blog > Tech and Science > ‘Loneliness’ Proteins in Your Blood Could Be Putting Your Health at Risk : ScienceAlert
Tech and Science

‘Loneliness’ Proteins in Your Blood Could Be Putting Your Health at Risk : ScienceAlert

Last updated: January 7, 2025 11:05 am
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‘Loneliness’ Proteins in Your Blood Could Be Putting Your Health at Risk : ScienceAlert
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Human beings are inherently social creatures. We thrive on connection, communication, and shared experiences that help shape our identities and foster a sense of belonging. However, in today’s fast-paced and digital world, feelings of loneliness and social isolation have become increasingly common.

According to the World Health Organization (WHO), about 25 percent of older people experience social isolation, while 5 percent to 15 percent of adolescents feel lonely. These feelings are not just unpleasant; they are also linked to increased risks of disease and death. A recent study published in 2022 found that social isolation in older individuals carried a 26 percent increased risk of developing dementia, with loneliness also being associated with depression.

To understand the biological mechanisms underlying the link between loneliness, social isolation, and health, researchers from the University of Cambridge and Fudan University conducted a study focusing on proteomics – the study of proteins. In a collaborative effort, they analyzed data from 42,062 participants and studied 2,920 plasma proteins.

The study revealed that certain proteins associated with loneliness and social isolation are also involved in inflammation, antiviral, and immune responses. Specifically, the researchers identified five brain-expressed proteins (GFRA1, ADM, FABP4, TNFRSF10A, and ASGR1) that were found to be elevated in individuals who reported feeling lonely.

Furthermore, the study tracked the health outcomes of participants over a 14-year period and found that many of these proteins were linked to cardiovascular disease, type 2 diabetes, stroke, and mortality. This suggests that loneliness may have a direct impact on our physical health through its association with these key proteins.

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The findings underscore the importance of maintaining good social relationships and avoiding loneliness to promote overall health. While proteins may only partially explain the relationship between loneliness and health, fostering meaningful social connections is crucial for well-being.

Social isolation and loneliness affect individuals of all ages and genders, leading to significant mental and physical health challenges. It is vital to engage in social activities, such as volunteering or team sports, to mitigate the effects of loneliness on our health.

While technology offers new ways to stay connected, face-to-face interactions that involve non-verbal communication are essential for building deep and meaningful connections. These interactions not only reduce stress and support immune function but also enhance cognitive health and emotional resilience.

In conclusion, fostering meaningful connections with others is vital for a flourishing society. By understanding the biological impact of loneliness and social isolation, we can take proactive steps to prioritize social connections and promote overall well-being.

TAGGED:bloodHealthLonelinessProteinsputtingRiskScienceAlert
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